Home / 123,814.36-170,874.39-70,108.84

Finding the Fourth Proportional to 123,814.36, 170,874.39 and 70,108.84

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Solution

The fourth proportional to 123,814.36, 170,874.39 and 70,108.84 is: 96,756.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,814.36 : 170,874.39 = 70,108.84 : x
  2. Step 2: Convert to fraction form
    123,814.36/170,874.39 = 70,108.84/x
  3. Step 3: Cross multiply
    123,814.36x = 170,874.39 × 70,108.84
  4. Step 4: Simplify right side
    123,814.36x = 11,979,805,268.61
  5. Step 5: Solve for x
    x = 11,979,805,268.61/123,814.36
  6. Step 6: Final answer
    x = 96,756.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.